Pneumatic tire.



PATENTBD JUNE 9, 1903..Vv

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FNBUMATIG TIRE.

y APPLICATION FILED GUT. 30. 1902. N0 MODEL. I

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Patented une 9, 1903. i

PATENT OFFICE.v

EDWIN B. RAYNER, OF PIQUA, OHIO.

PN EUMAT|C TIRE.

SPEGIFIGATION forming part of Letters Patent N 0. 730,474, dated June 9, 1903.

Application ilecl October 30, 1902. Serial No. 129.456. (No model.)

T0 all whom, it may concern,.- y

Be it known that I, EDWIN B. RAYNER, a citizen of the United States, residing at Piqua, in the county of Miami and State of Ohio, have invented certain newand useful Improvements in Pneumatic Tires, of which the following is a specification. Y

As generally constructed pneumatic tires when deflated and pressed into'service are more or less injured, depending upon the service of the road over which thetire is impelled,`

the weight to be carried, and the length of time the tire is used in the deflated condition.

This invention provides a tire combining the advantages of both pneumatic and cushion tires.' `When inliated, the-.tire is resilient and as easy-running as' any pneumatic tire, and when receiving a puncture or other injury causing deflation the tire acts as a cushion-tire and may be depended upon to carry the load home without inconvenience or annoyance to the rider or injury to the tire, the tread portion of which is pressed into or opposite a channel, so as not to comein injurious contact with the surface or road over which the tire is traveling.

For a full description of the invention and the merits thereof and also to acquire a knowl edge of the detailsof construction of the means for effecting the result reference is tovbe, had to the following description and drawings hereto attached.

Thile the essential and characteristic features of the invention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which-'- Figure l is a transverse section of a tirel tubular to admit of inflation and comprises, essentially, a tread portion and a rim portion. The rim portion of the tire is comparatively thick and stout ,to make provision for carry ing the load when the tire is deliated from any' cause, and the tread portion is comparatively thin to provide the necessary resiliency when the tire is inflated for use upon the pneumaticV principle. The tire may .involve any well-known construction and is preferably composite, being composed of textile and rubber, the textile being embedded in the rubber or arranged between inner and outer tubes or casings of rubber. The rim portion of the tire has its side portions thickened, as shown at l, to provide the necessary amount of material for sustaining the load when the tire is used on the cushion principle. The thickened side portions l project beyond the inner and outer sides of the tread portion of the tire to form inner shoulders 2 and outer shoulders 3, which sustain the load when the tire is deflated, as indicated` most clearly in Fig. 2. The inner shoulders 2 are nearer the rim 4: than the outer shoulders', the distance between the two sets ofshouldersY 2 and 3 being such as to allow for the tread portion of the tire being pressed inward for safety and enable the load to be carried upon the thickened side portions of the tire, as indicated in Fig. 2.

The rim portion of the tire vis depressed or channeled between the shoulders '2, as indicated4 at 5, and the tread portion of the tire comes opposite to said channel or is'pressed therein slightly, so as to be out of the way and not carry any of the load.

In the'construction shown in Figs. l and 2 the inner side of the tire is convex to conform to the concavity of the rim el, which'is hollow upon its outer side in transverse section.

In the form shown in Fig. 3 the inner side of the tire is straight and the thickened side portions l are formed with openings 6, which receive binders 7 for securing the tire to the rim 8, said binders being wire or metal strips. The openings 6 also serve to increase the flexibility and resiliency of the tire.

In the construction shown in Fig. l the thickened side portions project outward and form, in effect, side ribs or flanges 9, whichob- IdO tain a purchase upon outer iianges lO of the rim 1l, the latter having its middle portionV depressed or channeled.

The tire may be secured to the rim of the Wheel in any selected Way, Fig. 4 showing it cemented to the rim, Fig. 3 illustrating positive attachment of the tire to the rim by means of the metal binders '7, and Figs. l and 2 showing screw-fasteners comprising a cap-screw l2 and a iianged nut 13, the former passing through an opening in the rim and the latter being embedded in the tire.

lVhen the tire is inflated, it assumes the form shown in Figs'. l, 3, and 4, and when de- Hated from any cause it assumes the form substantially as shown in Fig. 2, the load being sustained by the thickened side portions and the tread portion being pressed inward, so as not to come into injurious contact With the surface over which the tire is propelled.

Having thus described the invention, what is claimed as new isl. A pneumatic tire having its side portions thickened to form inner and outer shoulders which carry the load When the tire is deflated, substantially as set forth.

2. A pneumatic tire having its side portions thickened to form inner and outer shoulders, the inner shoulders being nearer the rim than the outer shoulders to enable the tread portion of the tire being pressed inward so as not to come into injurious contact With the surface or road, substantially as set forth.

3. A pneumatic tire having its rim portion comparatively thick, its tread portion comparatively thin and its side portions thickened to form inner and outer shoulders for carrying the load When the tire is deiiated, the inner shoulders being nearer the rim than the outer shoulders,` substantially as set forth.

4. Apneumatic tire havingits side portions thickened to provide inner and outer shoulders and having side ribs or flanges to obtain a purchase upon side seats of the rim, substantially as set forth.

In testimony whereof l aiiix my signature in presence of tWo Witnesses.

EDWVIN B. RAYNER. 

